Home / 10,085.44-15,132.94-5,409.36

Finding the Fourth Proportional to 10,085.44, 15,132.94 and 5,409.36

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Solution

The fourth proportional to 10,085.44, 15,132.94 and 5,409.36 is: 8,116.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.44 : 15,132.94 = 5,409.36 : x
  2. Step 2: Convert to fraction form
    10,085.44/15,132.94 = 5,409.36/x
  3. Step 3: Cross multiply
    10,085.44x = 15,132.94 × 5,409.36
  4. Step 4: Simplify right side
    10,085.44x = 81,859,520.32
  5. Step 5: Solve for x
    x = 81,859,520.32/10,085.44
  6. Step 6: Final answer
    x = 8,116.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.